CHATGPT Unit 6-10 Flashcards
(26 cards)
What are the four basic tissue types?
Epithelial, connective, muscle, and nervous
What is the function of epithelial tissue?
Covers body surfaces and lines cavities
What distinguishes connective tissue?
It supports, binds, and protects other tissues and organs
What is the role of nervous tissue?
To transmit electrical signals for communication
What is the structure of muscle tissue?
Elongated cells (fibers) that contract to produce movement
What are the major body cavities?
Cranial, vertebral, thoracic, abdominal, and pelvic cavities
What are directional terms used for?
To describe the location of one body part in relation to another
What are anatomical planes?
Imaginary lines used to divide the body: sagittal, frontal, transverse
What is the anatomical position?
Standing upright, feet forward, arms at sides, palms facing forward
What does proximal mean?
Closer to the point of attachment to the trunk
What is homeostasis?
The ability to maintain a stable internal environment
What is a negative feedback loop?
A response that counteracts a change to restore balance
What is a positive feedback loop?
A response that enhances or amplifies the original stimulus
Give an example of negative feedback.
Regulation of body temperature
Give an example of positive feedback.
Childbirth and blood clotting
What are the main divisions of the nervous system?
Central nervous system (CNS) and peripheral nervous system (PNS)
What is the function of a neuron?
To transmit electrical impulses throughout the body
What are the parts of a neuron?
Cell body, dendrites, and axon
What is an action potential?
A rapid electrical signal that travels down the axon
What is the function of the myelin sheath?
To insulate axons and speed up signal transmission
What is a sensory receptor?
A structure that detects stimuli and converts it into electrical signals
What are the five main senses?
Vision, hearing, touch, taste, and smell
What is the function of the retina?
To detect light and convert it to neural signals
